CN109213054A - A kind of capacitor intelligence control system and its control method - Google Patents

A kind of capacitor intelligence control system and its control method Download PDF

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Publication number
CN109213054A
CN109213054A CN201811375528.1A CN201811375528A CN109213054A CN 109213054 A CN109213054 A CN 109213054A CN 201811375528 A CN201811375528 A CN 201811375528A CN 109213054 A CN109213054 A CN 109213054A
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CN
China
Prior art keywords
unit
signal
capacitor
control system
alarm
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Pending
Application number
CN201811375528.1A
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Chinese (zh)
Inventor
王慧
樊友平
罗福书
黄霆
吉宇
徐晓轶
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Jiangxi Electric Power Co Ltd
Nantong Power Supply Co of State Grid Jiangsu Electric Power Co Ltd
Original Assignee
State Grid Jiangxi Electric Power Co Ltd
Nantong Power Supply Co of State Grid Jiangsu Electric Power Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by State Grid Jiangxi Electric Power Co Ltd, Nantong Power Supply Co of State Grid Jiangsu Electric Power Co Ltd filed Critical State Grid Jiangxi Electric Power Co Ltd
Priority to CN201811375528.1A priority Critical patent/CN109213054A/en
Publication of CN109213054A publication Critical patent/CN109213054A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00Programme-control systems
    • G05B19/02Programme-control systems electric
    • G05B19/04Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/042Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
    • G05B19/0423Input/output

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The present invention provides a kind of capacitor intelligence control system and its control method, the intelligence control system includes signal acquisition unit, signal conditioning unit, A/D converting unit, control processing unit, display unit, storage unit, key-press input unit, alarm unit, communication unit and execution unit;The intelligence control system automatically adjusts the switching work of the capacitor, issues alarm in time when issuing abnormal, while being uploaded to monitoring center by the communication unit, can effectively improve power quality according to the information of acquisition.The present invention provides a kind of capacitor intelligence control system and method, and the switching situation of capacitor can be determined according to actual power factor, effectively improves power supply quality.

Description

A kind of capacitor intelligence control system and its control method
Technical field
The invention belongs to power control technology field, in particular to a kind of capacitor intelligence control system and its controlling party Method.
Background technique
With the continuous development of science and technology, more and more power products are used in people's production and life, people Demand and quality requirement to electric energy is also higher and higher.In order to reduce the loss in power Transmission, the capacity of power Transmission is improved And quality, need to put into the compensation that capacitor carries out reactive power.The present invention throws capacitor using intelligence control system Cut operation, monitor voltage, electric current in real time, the switching situation of capacitor is determined according to actual power factor, it is ensured that power supply quality and Reliability.
Summary of the invention
The present invention provides a kind of capacitor intelligence control system and method, can determine capacitor according to actual power factor Switching situation, effectively improve power supply quality.
The present invention is specially a kind of capacitor intelligence control system, the intelligence control system include signal acquisition unit, Signal conditioning unit, A/D converting unit, control processing unit, display unit, storage unit, key-press input unit, alarm are single Member, communication unit and execution unit, it is the signal acquisition unit and the signal conditioning unit, the A/D converting unit, described Processing unit is controlled to be linked in sequence, the control processing unit also respectively with the display unit, the storage unit, described press Key input unit, the alarm unit, the communication unit, the execution unit are connected, the execution unit and the electricity Container is connected;The intelligence control system automatically adjusts the switching work of the capacitor, works as sending according to the information of acquisition Alarm is issued when abnormal in time, while monitoring center is uploaded to by the communication unit, can effectively improve power quality.
The signal acquisition unit acquires power grid three-phase current signal using current sensor, is acquired using voltage sensor Power grid three-phase voltage signal acquires the temperature signal and moisture signal of the capacitor using temperature sensor.
The signal conditioning unit includes amplifying circuit and filter circuit, and the amplifying circuit carries out the electric signal of acquisition Enhanced processing, output meet the signal of the A/D converting unit input requirements, and the filter circuit uses simple RC filtered electrical Road filtering interference signals.
The key-press input unit carries out parameter setting and information inquiry in conjunction with the storage unit and the display unit, The parameter includes temperature alarming value, humidity alarm value, the first power factor action value, the second power factor action value.
The alarm unit is alarmed using combined aural and visual alarm, issues alarm signal in time when occurring abnormal;It is described The information of the intelligence control system is uploaded to the monitoring center using wireless communication technique by communication unit, while can be into The row parameter setting.
The execution unit carries out the capacitor according to the control instruction of the control processing unit using intelligent switch Switching operation.
The present invention also provides a kind of control method of capacitor intelligence control system, the control method includes following step It is rapid:
Step (1): the signal acquisition unit acquisition three-phase voltage signal, current signal, temperature signal and moisture signal, And the voltage signal, the current signal are transported into the signal conditioning unit, by the temperature signal, the moisture signal Transport to the A/D converting unit;
Step (2): the voltage signal and the current signal are amplified by the signal conditioning unit, filtered Processing, and transport to the A/D converting unit;
Step (3): A/D converting unit is carried out by signal of the A/D converting unit to acquisition and inputs the control Processing unit;
Step (4): the temperature signal is compared by the control processing unit with the temperature alarming value, if more than The temperature alarming value issues the alarm of temperature height by the alarm unit and the display unit, and passes through the communication unit Member is uploaded to the monitoring center, if being not more than, enters step (5);
Step (5): the moisture signal is compared by the control processing unit with the humidity alarm value, if more than The humidity alarm value issues the alarm of humidity height by the alarm unit and the display unit, and passes through the communication unit Member is uploaded to the monitoring center, if being not more than, enters step (6);
Step (6): calculating power factor according to the voltage signal and the current signal, and with first power Factor action value is compared, if being lower than the first power factor action value, is controlled the execution unit and is put into the capacitor Device;
Step (7): the power factor is compared with the second power factor action value, if more than described second Power factor action value controls the execution unit and cuts the capacitor.
Step (8): information is uploaded to by the monitoring center by the communication unit.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of capacitor intelligence control system of the present invention.
Fig. 2 is a kind of work flow diagram of capacitor intelligence control system control method of the present invention.
Specific embodiment
A kind of specific embodiment of capacitor intelligence control system of the present invention is elaborated with reference to the accompanying drawing.
As shown in Figure 1, intelligence control system of the invention includes signal acquisition unit, signal conditioning unit, A/D conversion list Member, control processing unit, display unit, storage unit, key-press input unit, alarm unit, communication unit and execution unit, institute It states signal acquisition unit and the signal conditioning unit, the A/D converting unit, the control processing unit is linked in sequence, institute It is also single with the display unit, the storage unit, the key-press input unit, the alarm respectively to state control processing unit First, the described communication unit, the execution unit are connected, and the execution unit is connected with the capacitor;The intelligence control System processed automatically adjusts the switching work of the capacitor, issues alarm in time when issuing abnormal, together according to the information of acquisition When monitoring center is uploaded to by the communication unit, can effectively improve power quality.
The signal acquisition unit acquires power grid three-phase current signal using current sensor, is acquired using voltage sensor Power grid three-phase voltage signal acquires the temperature signal and moisture signal of the capacitor using temperature sensor.
The signal conditioning unit includes amplifying circuit and filter circuit, and the amplifying circuit carries out the electric signal of acquisition Enhanced processing, output meet the signal of the A/D converting unit input requirements, and the filter circuit uses simple RC filtered electrical Road filtering interference signals.
The key-press input unit carries out parameter setting and information inquiry in conjunction with the storage unit and the display unit, The parameter includes temperature alarming value, humidity alarm value, the first power factor action value, the second power factor action value.
The alarm unit is alarmed using combined aural and visual alarm, issues alarm signal in time when occurring abnormal;It is described The information of the intelligence control system is uploaded to the monitoring center using wireless communication technique by communication unit, while can be into The row parameter setting.
The execution unit carries out the capacitor according to the control instruction of the control processing unit using intelligent switch Switching operation.
As shown in Fig. 2, the present invention also provides a kind of control method of capacitor intelligence control system, the control method packet Include following steps:
Step (1): the signal acquisition unit acquisition three-phase voltage signal, current signal, temperature signal and moisture signal, And the voltage signal, the current signal are transported into the signal conditioning unit, by the temperature signal, the moisture signal Transport to the A/D converting unit;
Step (2): the voltage signal and the current signal are amplified by the signal conditioning unit, filtered Processing, and transport to the A/D converting unit;
Step (3): A/D converting unit is carried out by signal of the A/D converting unit to acquisition and inputs the control Processing unit;
Step (4): the temperature signal is compared by the control processing unit with the temperature alarming value, if more than The temperature alarming value issues the alarm of temperature height by the alarm unit and the display unit, and passes through the communication unit Member is uploaded to the monitoring center, if being not more than, enters step (5);
Step (5): the moisture signal is compared by the control processing unit with the humidity alarm value, if more than The humidity alarm value issues the alarm of humidity height by the alarm unit and the display unit, and passes through the communication unit Member is uploaded to the monitoring center, if being not more than, enters step (6);
Step (6): calculating power factor according to the voltage signal and the current signal, and with first power Factor action value is compared, if being lower than the first power factor action value, is controlled the execution unit and is put into the capacitor Device;
Step (7): the power factor is compared with the second power factor action value, if more than described second Power factor action value controls the execution unit and cuts the capacitor.
Step (8): information is uploaded to by the monitoring center by the communication unit.
Finally it should be noted that only illustrating technical solution of the present invention rather than its limitations in conjunction with above-described embodiment.Institute The those of ordinary skill in category field is it is to be understood that those skilled in the art can repair a specific embodiment of the invention Change or equivalent replacement, but these modifications or change are being applied among pending claims.

Claims (7)

1. a kind of capacitor intelligence control system, which is characterized in that the intelligence control system includes signal acquisition unit, signal Conditioning unit, control processing unit, display unit, storage unit, key-press input unit, alarm unit, leads at A/D converting unit Believe unit and execution unit, the signal acquisition unit and the signal conditioning unit, the A/D converting unit, the control Processing unit is linked in sequence, and the control processing unit is also defeated with the display unit, the storage unit, the key respectively Enter unit, the alarm unit, the communication unit, the execution unit to be connected, the execution unit and the capacitor It is connected;The intelligence control system automatically adjusts the switching work of the capacitor according to the information of acquisition, abnormal when issuing When issue alarm in time, while monitoring center is uploaded to by the communication unit, can effectively improve power quality.
2. a kind of capacitor intelligence control system according to claim 1, which is characterized in that the signal acquisition unit is adopted Power grid three-phase current signal is acquired with current sensor, power grid three-phase voltage signal is acquired using voltage sensor, using temperature Sensor acquires the temperature signal and moisture signal of the capacitor.
3. a kind of capacitor intelligence control system according to claim 2, which is characterized in that the signal conditioning unit packet Amplifying circuit and filter circuit are included, the electric signal of acquisition is amplified processing by the amplifying circuit, and output meets the A/D and turns The signal of unit input requirements is changed, the filter circuit uses simple RC filter circuit filtering interference signals.
4. a kind of capacitor intelligence control system according to claim 3, which is characterized in that the key-press input unit knot It closes the storage unit and the display unit and carries out parameter setting and information inquiry, the parameter includes temperature alarming value, wet Spend alarming value, the first power factor action value, the second power factor action value.
5. a kind of capacitor intelligence control system according to claim 4, which is characterized in that the alarm unit uses sound Light crossing-signal is alarmed, and issues alarm signal in time when occurring abnormal;The communication unit will using wireless communication technique The information of the intelligence control system is uploaded to the monitoring center, while being able to carry out the parameter setting.
6. a kind of capacitor intelligence control system according to claim 5, which is characterized in that the execution unit uses intelligence The switching operation that the capacitor is carried out according to the control instruction of the control processing unit can be switched.
7. the control method of capacitor intelligence control system described in any one of -6 according to claim 1, which is characterized in that The control method includes the following steps:
Step (1): the signal acquisition unit acquisition three-phase voltage signal, current signal, temperature signal and moisture signal, and will The voltage signal, the current signal transport to the signal conditioning unit, and the temperature signal, the moisture signal are transported to The A/D converting unit;
Step (2): the voltage signal and the current signal are amplified, at filtering by the signal conditioning unit Reason, and transport to the A/D converting unit;
Step (3): it carries out A/D converting unit by signal of the A/D converting unit to acquisition and inputs the control to handle Unit;
Step (4): the temperature signal is compared by the control processing unit with the temperature alarming value, if more than described Temperature alarming value issues the alarm of temperature height by the alarm unit and the display unit, and by the communication unit The monitoring center is reached, if being not more than, enters step (5);
Step (5): the moisture signal is compared by the control processing unit with the humidity alarm value, if more than described Humidity alarm value issues the alarm of humidity height by the alarm unit and the display unit, and by the communication unit The monitoring center is reached, if being not more than, enters step (6);
Step (6): calculating power factor according to the voltage signal and the current signal, and with first power factor Action value is compared, if being lower than the first power factor action value, is controlled the execution unit and is put into the capacitor;
Step (7): the power factor is compared with the second power factor action value, if more than second power Factor action value controls the execution unit and cuts the capacitor.
Step (8): information is uploaded to by the monitoring center by the communication unit.
CN201811375528.1A 2018-11-19 2018-11-19 A kind of capacitor intelligence control system and its control method Pending CN109213054A (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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Publications (1)

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CN109213054A true CN109213054A (en) 2019-01-15

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Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102074963A (en) * 2011-01-17 2011-05-25 北京清电华力电气自动化科技有限公司 Intelligent reactive compensation comprehensive control device
CN202840530U (en) * 2012-10-28 2013-03-27 湖南金百大能效管理科技有限公司 Electric energy low voltage dynamic reactive power compensation device
CN103997046A (en) * 2014-06-09 2014-08-20 安徽赛瑞储能设备有限公司 Switching control method of energy storage unit of box-type energy storage substation
CN104065087A (en) * 2014-06-26 2014-09-24 国家电网公司 Distribution transformer reactive power compensation method
CN204179672U (en) * 2014-11-20 2015-02-25 深圳市三和电力科技有限公司 A kind of power factor controller
KR20160027710A (en) * 2014-09-02 2016-03-10 한전케이디엔주식회사 Energy management device
CN206148953U (en) * 2016-08-31 2017-05-03 湖北华辰凯龙电力有限公司 Humorous wave mode intelligence power factor controller of low pressure
CN206685906U (en) * 2017-05-03 2017-11-28 深圳市煊尔泰科技有限公司 Intelligent power capacitor
CN108832637A (en) * 2018-06-25 2018-11-16 湖北工业大学 A kind of communication-type Intelligent Reactive Compensating Controller and its operation/cutting method
CN209118103U (en) * 2018-11-19 2019-07-16 国网江西省电力有限公司培训中心 A kind of capacitor intelligence control system

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102074963A (en) * 2011-01-17 2011-05-25 北京清电华力电气自动化科技有限公司 Intelligent reactive compensation comprehensive control device
CN202840530U (en) * 2012-10-28 2013-03-27 湖南金百大能效管理科技有限公司 Electric energy low voltage dynamic reactive power compensation device
CN103997046A (en) * 2014-06-09 2014-08-20 安徽赛瑞储能设备有限公司 Switching control method of energy storage unit of box-type energy storage substation
CN104065087A (en) * 2014-06-26 2014-09-24 国家电网公司 Distribution transformer reactive power compensation method
KR20160027710A (en) * 2014-09-02 2016-03-10 한전케이디엔주식회사 Energy management device
CN204179672U (en) * 2014-11-20 2015-02-25 深圳市三和电力科技有限公司 A kind of power factor controller
CN206148953U (en) * 2016-08-31 2017-05-03 湖北华辰凯龙电力有限公司 Humorous wave mode intelligence power factor controller of low pressure
CN206685906U (en) * 2017-05-03 2017-11-28 深圳市煊尔泰科技有限公司 Intelligent power capacitor
CN108832637A (en) * 2018-06-25 2018-11-16 湖北工业大学 A kind of communication-type Intelligent Reactive Compensating Controller and its operation/cutting method
CN209118103U (en) * 2018-11-19 2019-07-16 国网江西省电力有限公司培训中心 A kind of capacitor intelligence control system

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